The title needs to indicate content. It does not need to be eye-catching.
Make sure that any reference to percentages always includes the specific number referred to eg, ‘25% of what?’. The normal shorthand is N= number. For instance, N=93 (where the study refers to 93 respondents). Label both the X and Y axes of a graph, so it is completely clear what is being shown in graphical format.
If you try to get graphs and charts to do too much, you can easily end up with an overcomplicated mess. Several clear charts are always better than one overcomplicated chart.
In terms of simplicity, a table can sometimes be just as effective as a graph or chart, as the following example shows.
It might sound an obvious point. But always make sure that your tables and charts are created from the final version of the data, so that they are current and completely consistent with the text. The aim is to illustrate and simplify, and not confuse.
When you have gone to a lot of trouble to create tables and figures, it is important to make sure that you use them effectively. So always refer directly to the figure, for instance: ‘Figure 7, above, suggests that...’ ‘Table 4, page 19, is a powerful argument for...’ ‘Figure 17, over page, provides clear evidence that...’
Writing academic text with lots of pictures will often cause layout challenges. Copying figures and charts from one source and pasting them into a Word document can be tricky. If you are not competent in this area, do consider learning simply by looking on YouTube. The University's Academic Skills Centre also run courses for students.